the old york ac compressor on my 62 Chevy sprung a leak and i finally found a new one on ebay. i was using R12 then freeze 12 in my old compressor but i have a lot of r134a sitting around so i thought about using it in the york. i have some questions though:

#1. is the 134a oil compatible with the seals in the york?
#2. how much oil should i put in this new york compressor?
#3. what type of oil should i put in if i go with 134a
#4. what type of oil should i use with R12?
#5. can i use any old oil if i fill it with Century Duster from Staples office supply which is really 152a. here's an interesting link about 152a: http://www.autoacsystems.com/_faqs/d...52a_tests.html since 152a Century Duster has no oil in it, i should be able to use it in any ac application right?

NO R12 oil is NOT compatible with R134a oil. All rubber "O" rings need to be switched out with "O" rings that are compatible with R134a. Your expansion valve or orifice tube needs to switched out for R134a calibration. Your old hoses may also need to be switched out for R314a barrier hose. The switch to R134a from R12 is not as simple as just evacuation and recharge.

that's what i needed to know but i'm seriously considering using 153a in this compressor. it's $10.00 for four 10oz cans at Staples and no oil compatibility issues. how much and what type of oil should i use in this compressor?

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